/*
 * @(#)UserLogic.java		       Project:SpikeSC
 * Date:2012-7-24
 *
 * Copyright (c) 2011 CFuture09, Institute of Software, 
 * Guangdong Ocean University, Zhanjiang, GuangDong, China.
 * All rights reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.sinaapp.msdxblog.spikesc.logic;

import utils.SecurityUtil;

import com.sinaapp.msdxblog.spikesc.dao.factory.DAOFactory;
import com.sinaapp.msdxblog.spikesc.dao.proxy.UserDAOProxy;
import com.sinaapp.msdxblog.spikesc.vo.SpikeUser;

/**
 * @author Geek_Soledad (66704238@51uc.com)
 */
public class UserLogic {

	private UserDAOProxy mUserDAO;

	public UserLogic() {
		mUserDAO = (UserDAOProxy) DAOFactory.getUserDAO();
	}

	/**
	 * 是否存在用户。
	 * 
	 * @return 当且仅当存在用户时返回true,否则返回false。
	 */
	public boolean hasUser() {
		return mUserDAO.findUserCount() > 0;
	}

	public boolean login(String name, char[] password) {
		String pswd = SecurityUtil.getDigest("MD5", password);
		SpikeUser user = mUserDAO.findUser(name, pswd);
		if (user == null) {
			return false;
		}
		return true;
	}

	/**
	 * 创建超级管理员
	 * 
	 * @param name
	 *            账号
	 * @param password
	 *            密码
	 * @return 当且仅当创建成功时返回true, 否则返回false。
	 */
	public boolean createSuperAdmin(String name, char[] password) {
		String pswd = SecurityUtil.getDigest("MD5", password);
		return mUserDAO.saveUser(name, pswd, 1);
	}
}
